Air-filter.



P. E. -NOLDEN.

AIR FILTER.

APPLICATION FILED JUNB14,1913.

,Patented Mar. 31, 1914.

UNIT- ED STATES PATENT. OFFICE.

PAUL E. NOLDEN, or ST. LOUIS, MISSOURI,

f ASSocIATIoN, oF Sr. LOUIS, MISSoUnI, A coRPonA'IIoN or MISSOURI.

AIRCFILTER.

Specification of Letters Patent. p Patented Mal'. 31,119.14.

Application led J une 14, 1913. l Serial No. 773,697.

To. all 'who-m t may concern .f y V Be it known that I, PAUL E, l \ToI.DEN, a citizen of the United States, resldlng at St.

V Louis, Missouri, have invented afcer'tain new and useful Improvement in Air-Filters, of

which the following is a full, clear, and eX- act description, such as will enable others skilled in the art to which it appertains to make and use the same.

rThis, invention' relates to air-lteringap- -`paratuses, andparticularly lto the means f used in beer-'dispensing apparatuses for filtering'theair supplied by the pump vand disL tributing the air to the kegs `or barrels winchy contain the beer.

One object of my inventionis to provide an efficient air-filter and distributer that can be t'aken apart easily so as to'cleanse same and renew the filtering material? Another object isto provide a device of the character described that presents a neat l and ornamental appearanceand which can be manufacturedat a low cost. i

The figure of .the drawings is la verticalsectional Viewl of an air-filter andd-istributer p for a liquid-dispensing apparatusy constructed in accordance with my invention.

Referring to the drawings which illustrate the preferred form of my invention, A

designates' an airltight receptacle composed cfa cylindrical-shaped shell l, a toppiece 2 and a bottom piece y3- that are securely i clamped to' saidshell. The shell 1 is pref- `era'bly formed of glass` orsome other suit- Savable transparent material, and the vupper landlower ends oftsame lit in' annular flanges 2a and 3.` on the top and bottom members 2 ^a1id 3,. respectively, of the device, gaskets 4 being preferably interposed between the ends of the shell 1r and the'members 2 and 3- so as to form air-tight joints between said parts. A vertically-disposed tube 5, which ispreferably formed integral with the s top member 2 and depends'therefrom, iS 45 provided at Its lower:v end with a solid shank or extenslon 6 that projects downwardly4 through the bottom member 3 ofthe receptacle, anda winged nut is lmounted on a,

Screw-threaded portion of' SaidH sha-nk 6 below the bot-tom member 3 so .as-to' securelyy clamp the shell 1 `of the receptacle between the top and bottom members 2 and 3 when the nut 7 is tightened. A tube`8 tlat leads sure, not shown, is connected to a cock 9 im rthe top member 2 at a 4point In -alin`eme-nt with the air-tube 5, and a plurality .of airdist-ributing cocks oivalves l1, are connected to the top member 2 of the device so as to control the passage .of the air from the receptacle A to the tubes 12 that lead to the kegs or barrels, not shown, which contain the beer, the air-distributing valves 11 being tapped into openings 13 in the top mem ber 2 that terminate on the underA side of ysaid member at a point between the shell 1 and' the casing hereinafter described for -holding the `filtering material.

A through the' tube 8 -is filtered before it leaves said receptacle by means 'of a mass of terial which i arranged inside of the receptacle Asin the path of travel of the air, Said filtering material m' surrounds the airtube 5, and it is retained in position lby means of, a cylindrical shaped casing 14 whose upper end' bears against`a gasket p15 on the under side of the top member 2 of the device, itbeing preferable to form an an-l member 2 to receiye the gasket 15 and also the upper `edge vof the casing ,14 so as t center the upper end of said casing and/ prevent it from moving laterally with relation 17 which is held pressed tightly against the lower end of the casing and .against a stop 18 at the lower end ofthe air-tube 5 by means of a winged /nut 19 that is mounted ingu'. Gaskets A20 are vpreferably arranged between the cap 17 and the lower end of the casing" 14 and between said cap and the' stop said parts.v ,The lower endof the air-tube is closed but ports l21 are formed in Said vtube adjacent the lower end .of` same so fthat ythe air ,whichV passes downwardly through ing material a: vand pass. upwardly through \said lteringmaterial to ports 22 that are 'i I. from a pump orother source of air pres-.-

that is screwed into an openin 10 formed The air that is supplied to the receptacle said tube willesca-pe laterally into the filter-l f AsSIGrNfon To ANIIEUSEBFBUSCH BREWING cotton or some ther suitablev filtering manular recess 16 on theunder side of the,

to the air-tube 5. Thelower end of the cas-1 ing 14 is closedby va removable bottom capA4 on a screw-threadefd portion ofy theexten sion 6 of the air-tube, as shown in the draw-- 1Q so as to form yair-tight joints between formed in the casing 1,1 ladjacentthe" upf, l

per end of same. After the filtered air has passed through the ports 22 into the s lace between the casing 14 and the shell 1- o the "receptacle ,A it can escape fromjthe device through the distributingvalves 11, providedV of course that'said valves are open, the ar` rows in the drawing indicating thepassag'e of the air. I.

'A device ofthe construction above described insures a thorough iilterin of the air owingto the fact that the air-tu 5 and the casing 14 that surrounds the filtering material are so constructedthat the air has lto pass through a large body of lfiltering the bottom member and `the shell of the rematerial and vclean out the sediment that cept-acle A and then removing the winged nut 19,that retains the casing for the filtering material in position. Consequently, it is a'very simple matter to renew the filtering- 1ec`ts in the device?. Another desirable feature is that any sediment that collects inthe receptacle A can be seen withouttaking the .device apart owing to the `fact that the side wall o f said yreceptacle is formedof transparent vmaterial and the bottom of same isiiat or level. The top member 2 is formed in'one piece and is so designed that 4it acts .as a -closure for the upper end of the casingfor lthe filtering material and prevents said casing from shifting laterally out-of operative`position.

-- In addition to the desirable features above mentioned the :device presents a neat and ornamental appearance and it comprises only a `fewparts of simple design that ca'n be manufactured at a lowcost. j

Having thus described my invention, what IE claim ,as new and desire to secure by LettersPatentisz'-;` 1. An air filtering and distributing device comprising a-receptacle composed o'f a' top' and bottom member ,and 'a shell interposed between said members, an lair-tube depending from said `top4 member and provided with a shank that projects through said bottom member, a nut on said shank arrangedl below said bottom member 4for clamping the shell securely in position between said members, a cas-ing surrounding said air-tube for .holding amassof .filtering ma'terial and means for pressing the upper edge o said casing tightly againsttheI top; member of saidv receptacle. j

` l2. An air filtering and' distributing device comprising a' receptacle composedof a top `between said members, an `air-tube dependwith a shank that projects through said bottom member, a nut `on said shank arranged below 'said bottom member for clamping the shell securely in position between saidmembers, a casing surrounding said air-tube for holding a mass of filtering material, a bot.- tom cap-piecethat forms a closure for the lower end of said casing, and an adjustable device on the shank of the lair-tube which clamps said bottom cap-piece against the lower end of thecasing and also forces the upper end of the casing tightly against the unller side of the ytop member of said receptac e.

3.- An air filtering anddistributing device comprising a receptacle composed of a top vand bottom member anda shell interposed vbetween said members, an air-tube depending Yfrom said top `member and provided tom member, a` nut on said shank arranged below said bottom member for clamping the shell securely in position between said members,a casing surrounding said air-tube for tom cap-piece that forms a closure for the lower .end of saidasing,an adjustable device on the shank of the' airtube which clamps said bottom cap-piece against the lower end. of the casing and also forces the under side ofthe top member of said receptacle, means whereby the. air that enters vlongitudinally of said casing through4 the filtering material in same, and airdistribut with ports whereby the air that is supplied through said air-tube will travel upwardly through the iltering'material in the'casing, and distributing valves carried by the top piece of the receptacle for controlling the A.paslsagexof the filtered air from the receptac e..

5. 'An a/iriiltering and Idistributing device shank at the lower end of lsaid air-tube, an open-ended shell whose upper edge bears against the under side of said top member,

. said' air-tubi and having its upper edge-bearupper end of the casing tightly against the'l ing valves for controlling the passageofthe ing from said top member and provided with a shank ythat projects through said botholding a mass of ltering. material, a botel 10U through said air-tube'is caused to travel and bottom member and a shell interposed cent its lower end with ports and said cas-- ing being provided adjacent its upper end a casing Efor filtering material surrounding4 comprising a top member provided with an' integralair-tube that depends therefrom, ay

ing against the under side of Said top member, closures for the lower end of said casing and said shell, and means on the shank of said air-tube for retaining said closures in position and for pressing said shell and casing tightly against the under side of the top member of the device.

In testimony whereof I hereunto aix my signature in the presence of two witnesses, this eleventh day of June, 1913.

' L PAUL E. NOLDEN. Witnesses:

WELLS L. CHURCH,l GEORGE BAKEWELL. 

